Filter



April 22, 195 B. WHITEHOUSE FILTER 2 SHEETSSHEET 1 Filed June 17, 1947 m m w m BEN WHITEHOUSE April 22, 95 B. WHITEHOUSE FILTER 2 SHEET$-SHEET 2 Filed June 17, 1947 I N VEN TOR.

V. E E N s R u o O T H T E A w H W N E B Patented Apr. 22, 1952 FILTER Ben Whitehouse Milwaukee, Wis., assignor to Rodwell Engineering and Sales a a w Company,

Application Junell', 19.41, Serial No. 755,159

My invention relates to improvements filters and more particularly to a type; of filter employedinthe circulation of water within high or low pressure systems, in steamer hot water boilers.

The object of my invention is toprovide. a device for filtering impurities and sediment prev alent'in water used in pressure boilerswhere internal water treatment is employed; Another object of my invention is to provide a. device that may be installed within the circulating pipe system of a boiler. I

Still another object of my invention is to provide a device that has no moving parts to become inoperative and that operates as a fself-contained sealed unit that may be left'unattended.

A still further object of my invention is to provide a device that may be manually conditioned or may be equipped with a self-contained filtering cartridge that may be replaced as a unit. 1

Other and further objects of my invention will become more apparent as the description proceeds and when taken in conjunction with the drawings in which Figure 1 is an outside view of the entire assembled device. 7 I 3:

Figure 2 is a fragmentary cross-sectional view of the assembled device as shown in :Figure 1.

Figure 3 is a cross-section of the cylindrical body of the device showing the inwardly extend ing members employed for supporting the upper filter screen.

Figure 4 is a similar view as shown in Figure 3, showing the inwardly extending members for supporting the lower filter screen.

Figure 5 is a top or plan view of the filtering screen.

Figure 6 is a cross-sectional view of he filteringj screen as shown in Figure 5.

- *1 Claim. '(01. 210-140) is a flange I3 provided with apertures corresponding with apertures within the annular flange l2, and these apertures act as a means for inserting screws 14 for retaining the top flange l3=in position.

Obviously, a gasket shown as l 5 is inserted betweenthe annular flange member [2 and. the closed top. flange l3 to seal the entire unit. The top flange I 3 is shown provided with an outlet -tubeshown as 16, and the semi-spherical bottom member II; is provided with an outlet member I! which terminates into a standard shown as I 8 at the bottom for the support of;

the entire unit. The inner wall of the cylindricalbody l0 is uprovided near its top with inwardly extending members l9 and I 9 and near its lower end by inwardly extending members 29 and 20'.

These inwardly extending members act as asupport for filter plates shown as 2| which are provided with inwardly extending slots 22 ontheir outer peripheral edge. These filter plates 2lare-further provided with perforated plates 23 supported by cross members 24 and are disposed for engagement with the inwardly extend-- ing members l9 and I9 at the top and 20 and 20' at the bottom. There is also a plurality of fabric sections shown as 25. These fabric sectionsconsist of burlap or the like, and are ar-;

ranged for engagement with the inner surface of the filtering plates 2!. Disposed between the fabric strainers 25 is shown a mass of filtering material 26 which consists of a small particle of. solid matter which is held in place by the filtering plates 2|." There is aninlet 21 shown through the side wall of the cylindrical body I 0 at a point below the lower filter plate 2|, and the outlet I! at the bottom of the semi-spherical bottom member II is provided with an outlet 28 and another tubular member 29 which is provided Figure 7 is an outside view of the filtering cartridge.

Figure 8 is a cross-sectional view of the device showing a filtering cartridge in place, and

Figure 9 is a fragmentary cross-sectional view of the cartridge unit with the filtering screens and filtering material in position.

Similar characters of reference indicate corresponding parts throughout the several views, and referring now to the same, the character I0 shows a cylindrical body that has a semi-spherical bottom member H at its lower end, and this bottom member may be any shape or contour having radial ends, and an annular flange member l2 welded to its open upper end. There with a pet cock (not shown) or the like, for draining samples from the reservoir portion 30 in the bottom of the cylindrical body. This reservoir portion 30 is arranged to collect the sludge or impurity in the water which are heavy enough to settle out of the water or light enough to stay suspended in the water as the water is being filtered as it is forced upward through the filtering plates 2|, the filtering fabric 25 and the filtering material 26 before it is permitted to pass out of the tubular member 16 at the top of the device.

Obviously, all inlets and outlets to the filter unit are provided with suitable valves to control the flow of water or the like within the boiler system.

exhaust through the tube 16 at the top of the flange member l3 acting as a top of the filterin unit.

It is also possible to openthe valve in the outw the sludge or residue and the devicemay be a? cleaned by closing the valve in the tube 21 and reversing the action, that is, forcing the water downward through the top tube loosening the sludge accumulated in the filtering material 26, causing it to settle downward within the reservoir section 30 from'wher'e it may be drained through the outlet I! at the bottom.

After the sludge has been removed, it is possible to again open the valve within the'tubular member 21 at the side near the bottom of the cylindrical'body assembly, to place the filter in normal operation. It is manifest that the arrangement shown may be replaced by inserting a cartridge as shown in Figure 7, consisting of a separate cylindrical unit shell 3i in which the filtering material 26 is placed, which unit has the filter plate 2|, top and bottom, and the fabric filtering material 25 die-- posed next to the plates 2|. Y By using a cartridge of this type it is only necessary to remove the flange l3 at the top'so that the cartridge may be lifted out by means of the handle 32 and replaced with a new or clean cartridge in which the accumulation has been forced out by means of air or water pressure.- However, when the cartridge type of' refill-is not used, it is quite possible to remove the entireunit from the circulating system temporarily while it is taken apart and the filtering material re placed by fresh or washed products so that the filter may again be placed in service for full efiiciency.

While I have shown a particular arrangement r I 6, thereby 4 erativeness of the device, and I reserve the privilege to change the arrangement of the parts as well as their shape or contour, without effecting its efficiency and without changing the spirit of my invention or the scope of the appended claim. Having thus described the invention, what I claim and desire to securevby LettersPatent in the United States is: Y

A filtering device of the character described comprising a hollow container open at its upper end, a, removable cover for closing the open end of said container, an inlet tube leading through theside wall of said container, an outlet tube lead ing from the removable cover at its upper end, a draintube at the bottom of said container, the inner wall of said hollow container provided with inwardly extending members above said inlet tube, a detachable cylindrical filtering unit mounted within said hollow container and supportedby said inwardly extending members, said cylindrical unit provided with apair of perforated filter plates spaced apartfrom one another, said plates supported within said filtering unit, said plates having filtering units constructed of a plurality of layers of fabric overlying said'plates and a mass of filtering material disposed between saidfiltering'plates in a manner to fill the space between the fabric filter units on the face of said plates.

' BEN VII-IITEHOUSE.

REFERENCES CITED The following references are of record in the file of thispatentz- Number Name T Date 1 188,274 Woolsey Mar. 13, 1877 197,428 Thierman -Nov. 20, 1877 314,257 Miner Mar. 24, 1885 555,685 Edgington Mar. 3, 1896 I 556,008- Harris Main 10, 1896 594,695 Hunter Nov. 30, 1897 617,177 Nickey '1 Jan. 3, 1899 619,303 Hayden et al Feb. 14, 1899 813,517 Pfautz Feb. 27, 1906 1,162,455 Collins Nov. 30, 1915 1,917,127 Hughson July 4, 1933 2,065,658 Compton Dec. 29, 1936 2,359,985- Gordon Oct. 10, 1944 2,381,354 Larson Aug. 7, 1945 1 Clark Nov. 1, 1949 

